Fourth to thomas sterling



Patented June 20, I899.

W. D. CLUGSTON.

CUTTER HEAD FOB PLANEBS.

(Application filed Jan. 10, 1899.)

2 Sheets-Sheet I,

(No Model.)

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2 Sheets-Sheet 2.

(Application filed Jan. 10, 1899.)

(No Model.)

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Witmeoow r rno STATES PATENT OFFICE.

WILLIAM D. CLUGSTON, OF WILMINGTON, DELAWARE, ASSIGNOR OF ONE- FOURTIITO THOMAS STERLING, OF SAME PLACE.

SPECIFICATION forming part of Letters Patent No. 627,699, dated June 20,1899. Application filed January 10, 1899. $erial No. 701,701. (Nomodel.)

To aZZ whom it may concern.-

Be it known that I, WILLIAM D. OLUGSTON, a citizen of the United States,residing at Wilmington, in the county of New Castle, State of Delaware,have invented certain new and useful Improvements in Gutter Heads forPlaners, of which the following is a specification, reference being hadtherein to the accompanying drawings.

This invention relates to cutter-heads for planers,and particularly tosuch a head adapted for application to a planing-machine in which eitherthe work or the tool is reciprocated.

The invention has for its object to provide the adjustment of thecutting-tools so that the same can operate in a position other than at aright angle to the Work.

A further object is to provide independent vertical adjustment for eachof the tools and also means whereby one of the tools and slid ing headsmay be removed from its associated member.

Other objects and advantages of the invention will hereinafter appear inthe following description, and the novel features thereof will beparticularly pointed out in the appended claims.

In the drawings, Figure 1 is a side elevation of the invention with partof one tool-holder in section. Fig. 2 is a horizontal cross-section onthe line 2 2 of Fig. 1. Fig. 3 is a front elevation with the secondarytool-holder removed, and Fig. 4 is a detail view of the staggeredarrangement of the cutting-tools.

Like letters of reference indicate like parts throughout the severalfigures of the drawlngs.

The letter A designates the cross-bar of a planer-machine of anyconstruction, which bar is provided with the usual adj ustingscrews A,which engage with and move the head-block B. These adjusting-screws arefor the purpose of maintaining the usuallateral feed of the cutters foreach complete reciprocation of the work 0.

In this application the work will be de-- scribed as the moving memberduring the planing operation; but it is obvious that the cros's-headAmaybe moved and the work held stationary to accomplish the same result,as is well known in this art.

. The head A is provided with opposite flanges A which fit similar waysupon the block 13, which block is provided with a removable.attaching-plate B, secured by any suitablemeansforinstance,ascrewB Forthe purpose of receiving the wear in the movement of the block B uponthe cross-bar A a wear-plate or gib B is introduced between the same andupon the surface of the upper projection A An adjusting-pin B bears uponthis gib. The block B is also provided with a circular undercut orrecessed groove Biadapted to receive the heads of bolts D, which passthrough and are carried by a circular head D. This arrangement of partspermits the bodily oscillation or adjustment upon a circular line of thecutter-head. From the face of the head D a V track or projection Dextends, upon which slides the main vertically-sliding head E, which isprovided with a suitable grooved recess to fit said projection. Anadjusting gib or block D is introduced between these parts to compensatefor wear and is adjusted upon a threaded pin D by means ofoppositely-set nuts D The main sliding head E is provided at its upperportion with opposite] y-extendi n g arms E for the purpose ofadjustment. This adj ustment is effected by a rotatable threaded rod Epassing through an arm E and provided at its upper end with anoperatinghandle E the rotation of which will feed the head E in eitherdirection upon the track D This head E is provided with a dependingportion E upon which is pivotally mounted a tool-holder F by means of apivoting-bolt F passing through the lower portion of the holder F androtatably mounted in the part E The tool-holder is provided with aswinging frame F pivoted in the lugs F by means of a pin F so that theframe may move away from the head upon which it is carried. The tool isattached to the part F by means of any suitable clamping-blocks F andthreaded bolts F passing through the blocks and into the frame F Theentire tool-holder is rotatable upon the pivot F and is held in itsadjusted position by means of the segmental slot F and bolts F passingthrough said slot and into the portion E of the head. This means ofmounting permits the tool-holder to be adjusted so that the tool willcut at any angle relative to the head upon which it is carried-forinstance, as shown in Fig. 3, wherein the tool in full lines is cuttingat right angles to the head, while it may be adjusted, as shown indotted lines, to cut at a different angle. The tool is thus held inposition and is vertically adj ustable by means of the sliding head Eand rotatably adjustable by means of the connecting-head D and block B.

Upon the main sliding head E a secondary head G is mounted, saidsecondary head being provided with a V-flange G, adapted to slide in a Vway or recess E in the front of the main head E, and the usual wearbetween these parts is compensated for by means of a gib or key H,adjustable upon a threaded pin 1-1 by means of the nuts H similar inconstruction to the gib D previously described. This secondary head isvertically adjustable upon the main head E byathreaded rod I passingthrough an arm E and provided with an operating-handle I. The lower endof this rod is seated in a suitable threaded socket 1 .(shown in dottedlines in Fig. 1,) whereby the rotation of the rod will vertically adjustthe head G in the ways E of the head E. This socket I is held to therear Wall of the head G by means of a securing-bolt 1 and the lower partof the head G is provided with a depending portion G to which aresecured a tool-holder and swinging frame F and F as heretoforedescribed. These opposite parts are similar in construction and need nottherefore be separately described; but the tools carried thereby aremounted with their cutting edges directed in opposite directions, sothat during the movement in one direction the tool 0 will cut, while inthe returning movement the tool 0 is broughtinto operation, ashereinafter described.

In order to firmly and positively secure the secondary head Gto the mainhead E, abail J is pivotally mounted, by means of screws J, upon thehead E, and the outer face of this bail is provided with adjustablescrews J adapted to engage the secondary sliding head G and maintain thesame in proper relation. When it is desired to remove the head G, thebail can be removed from the main head and the secondary head movedupward until the flange G thereof leaves the way in which it travels.

Both the main sliding head E and secondary head G are suitably cored orrecessed, as shown in dotted lines in Fig. 1 and in full lines in Fig.2, to provide a space to receive the upper end of a tool when the samemay be of greater length than the depending portion of the head, asshown in dotted lines in Fig. 1. This permits the adjustment and use oftools of any ordinary length.

From the foregoing description it will be obvious that the entire holdercan be adjusted or rotated upon the nuts D within the grooved circularrecess 13 of the sliding block B. The

main vertically-adjustable head E is also adjustable upon the block B,and in this manner the cutter C may be raised or lowered, as desired,and if the cutter C be not independently adjusted both of the cutterswill be simultaneously elevated or depressed. If in any character ofwork it is desirable to adjust the cutter 0 to work in a different planefrom the cutter C, the same can be accomplished by means of a rod I,which will vertically adjust the secondary head G upon the main head E.The pivotal mounting of the two holders F also permits the same to besingly or collectively used upon surfaces of the work lying at differentangles to the crossrod upon which the holders are supported. Each ofthese toolframes is independently adjustable upon its pivoted frame F sothat the planer is adapted to operate upon almost any form of casting orwork to which it may be applied. In planing a plate or plane surface ifthe work be begun at the left and the work moved in the direction of thearrow in Fig. 1 the cutter C will first remove a portion of the surface,While the cutter C will swing with its pivoted frame E into the positionshown in dotted lines and travels over the face of the work, while whenthe plate returns to complete its reciprocation the cutter C willoperate and the work pass beneath the cutter 0, the same traversing thesurface previously cut. These cutters are slightly staggered, as in Fig.4. For instance, each is provided with a cutting-face of one-eighth ofan inch, so that the movement in one direction cuts one-eighth of aninch and the return movement one-eighth of an inch, making a totalsurface planed of one-fourth of an inch, and the head-block B is thenadjusted onefourth of an inch to begin the next cut. The tools areprovided with their cutting-faces in opposite directions for thepurposes just described and are located between the depending portionsof the main vertical sliding frame and the secondary frame G, so as tobring the cutting-faces close to each other.

It will be obvious that changes maybe made in the details ofconstruction and conformation of the several parts without departingfrom the spirit of this invention.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is-

1. In a cutter-head for planers, the combination with a cross-bar of aplaning-machine, of a head-block movable thereon, a verticallyslidinghead carried by said block, a device for vertically adjusting saidvertically-sliding head, a secondary vertically-sliding head supportedby and adjustable with said first sliding head, means for independentlyadjusting said secondary head, a cross-head carrying said adjustingdevices and tool-holders carried by each of said heads; substantially asspecified.

2. In a cutter-head for planers, the combination with a cross-bar of aplaning-machine,

of a head-block movable thereon, avertically devices upon each headpivotally mounted in both a vertical and horizontal plane to permitlateral and longitudinal oscillation of the tool; substantially asspecified.

3. In a tool-holder, a vertically-sliding head provided with a cross-armhaving bearings at opposite ends, an adjusting device cooperating withone end of said arm to adjust said head, a secondary vertically-slidinghead, an independent supporting and adjusting device carried by theopposite end of said cross-arm and secured to said secondary head, andtoolholding devices carried by said heads; substantially as specified.

4. In a tool-holder, a vertically-sliding head provided with a cross-armhaving bearings at opposite ends, an adjusting device cooperating withone end of said arm to adjust said head, a secondary vertically-slidinghead, an'

independent supporting and adjusting device carried by the opposite endof said cross-arm and secured to said secondary head, tool-holdin'gdevices carried by said heads, and a piv-' oted bail surrounding saidsecondary head; substantially as specified.

5. In a tool-holder, a vertically-slidinghead' and means for adjustingthe same, a secondary vertically-slidinghead supported thereon andadjustable therewith, an independent adjustment for said secondary head,tool-holding devices mounted upon depending extensions from saidheads,and oppositely-disposed tools pivotally mounted upon said devicesto swing toward each other and overlapped or staggered; substantially asspecified.

6. In a cutter-head, the combination with a laterally-slidinghead-block, of a head rotatably adjustable thereon, a vertically-slidinghead mounted upon said rotatable head, a tool-holding device carried bysaid vertically sliding head, a secondary head supported by andadjustable with said verticallysliding head, independent means for adjusting the secondary head, and a tool-holding device carried by saidsecondary head; substantially as specified.

7. In a tool-holder,a vertically-sliding head, a cross-arm to said head,means cooperating with said arm to adjust said head, a secondaryvertically-sliding head, an independent supporting and adjusting rodsecured thereto and mounted in the arm of said main vertically-slidinghead, independent tool-holding devices for each head pivotally mountedin both a vertical and horizontal plane to permit lateral andlongitudinal oscillation of the tool, and a pivoted bail mounted uponone head and removably engaging the secondary head; substantially asspecified.

8. In a tool-ho1der,a vertically-sliding head, a cross-arm to said head,a rod cooperating with said arm to adjust said head, a secondaryvertically-sliding head, an independent threaded adjusting-rod securedthereto and mounted in the arm of said main verticallysliding head,independent tool-holding de vices for each head pivotally mounted inboth avertical and horizontal plane to permit lateral and longitudinaloscillation of the tool, a pivoted bail mounted upon one head andremovably engaging the secondary head, dove tailed or V ways betweensaid heads, and adjustable gibs in said ways; substantially asspecified. I

In testimony whereof I aiiix my signature in presence of two witnesses.

WILLIAM D. OLUGSTON. Witnesses:

CHARLES GREEN, J AMES W. GREEN.

